<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>1</title>
    <style type="text/css">
    * {
        margin: 0;
        padding: 0;
    }
    
    #stage {
        width: 300px;
        height: 400px;
        background-color: #fff;
        border:1px solid #f00;
    }
    
    #container {
        width: 200px;
        height: 200px;
        margin: 0 auto;
        background-color: #ff0;
    }
    </style>
</head>

<body>
    <div id="stage">
        <div id="container">
        </div>
    </div>
    <script type="text/javascript" src="./1.js"></script>
</body>

</html>
